로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0034023 (1993-06-01) |
| 우선권정보 | EP-0810294 (1992-04-23) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 355 인용 특허 : 0 |
This invention relates to a novel smartcard-based authentication technique using a smartcard that encrypts the time displayed on the card with a secret, cryptographically strong key. The (public) work station receives as input certain values defining the user, the card and a particular value derived
This invention relates to a novel smartcard-based authentication technique using a smartcard that encrypts the time displayed on the card with a secret, cryptographically strong key. The (public) work station receives as input certain values defining the user, the card and a particular value derived from the encrypted time and encrypts and/or transmits these values to the server. The server, in turn, computes from received values some potential values and compares these to other received values. If the server determines a match, an accept signal is transmitted to the work station.
A system for authenticating a user with a smartcard, said system including authentication server means and a plurality of distributed work stations connected to said server means, comprising: said smartcard having a card identifier, a running value device for indicating a card running value, input-o
A system for authenticating a user with a smartcard, said system including authentication server means and a plurality of distributed work stations connected to said server means, comprising: said smartcard having a card identifier, a running value device for indicating a card running value, input-output means, and encrypting means with a secret card key for computing a first encryption of the indicated card running value under the secret card key, each said work station having input means for receiving the user name the card identifier, the card running value, and a user authenticator computed from the user\s personal identifier and the first encryption, means for encrypting the card running value under the user authenticator, means connectable to said server for transmitting to the server the user name, the card running value, the card identifier, and a second encryption of the card running value under the user authenticator, said server means having at least one memory storing user names, user personal identifiers, at least one secret key, and preferably, card identifiers, means for determining a potential secret card key from the received card identifier and a potential personal identifier from the received user name, means for computing a first potential encryption of the received card running value under the potential secret card key, means for obtaining a potential user authenticator from the potential personal identifier and the computed first potential encryption, means for computing a second potential encryption of the received card running value under the potential user authenticator, means for comparing the second potential encryption with the received second encryption, means for transmitting a signal to the work station, which is an accept signal if the second potential encryption matches the received second encryption, and which is a non-accept signal otherwise.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.